hello everyone i would like to know what is a good upgrade controller and servos i can use for my dm-1 pro rtr i hear fm is better than am please give me some sugg. O and i am looking for something that won't break the bank

hello everyone i would like to know what is a good upgrade controller and servos i can use for my dm-1 pro rtr i hear fm is better than am please give me some sugg. O and i am looking for something that won't break the bank

Fm is better than Am's but spread spectrum radios like the Spektrums, Nomadios, and FASST's are even better than both of them...